• Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Malmidea leptoloma (Müll. Arg.) Kalb & Lücking

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Scientific name
Malmidea leptoloma
(Müll. Arg.) Kalb & Lücking
Common names
IUCN Specialist Group
Assessment status
Proposed by
Isaias de Oliveira Junior
Comments etc.
Diego Simijaca, Isaias de Oliveira Junior

Assessment Notes

Taxonomic notes

This species is known by its rugulose thallus, margin apothecial yellowish brown or often apically blackish, disc beige (Caceres, 2007, Breuss & Lucking, 2015)

Biatora leptoloma (Müll. Arg.) Hellb., Bih. K. svenska VetenskAkad. Handl., Afd. 3 21(no. 13): 105 (1896)
Lecidea leptoloma Müll. Arg., Flora, Regensburg 64(32): 518 (1881)
Malcolmiella leptoloma (Müll. Arg.) M. Cáceres & Lücking, in Cáceres, Libri Botanici 22: 106 (2007)

Why suggested for a Global Red List Assessment?

Due to all the previous information this species might be considered as Near Threatened (NT) until a better understanding.

Geographic range

This is species is known in five countries. In Brazil, 16 occurrences to this species are known, located in South, Southeast, North, and Northeast of Brazil according to GBIF database.

Population and Trends

There are 58 records in GBIF database, distributed in Mexico (38 records), Brazil (16 records), Solomon Islands (2 records), and the other occurrences are distributed in small percentages.

Population Trend:

Habitat and Ecology

This species occurs in Pantropical areas. In Brazil, this species can be found at the Atlantic Rainforest in Northeast, South, and Southeast of Brazil.

Subtropical/Tropical Moist Lowland ForestSubtropical/Tropical Moist Montane Forest


In Brazil, this species commonly founded in Atlantic Rainforest and Amazon Rainforest that are biomes that still suffer anthropic actions in special wildfire, natural and criminal caused, and area suppression.

Tourism & recreation areasSmall-holder farmingAgro-industry farmingSmall-holder plantationsAgro-industry plantationsRoads & railroadsUnintentional effects (species being assessed is not the target)Increase in fire frequency/intensityHabitat shifting & alteration

Conservation Actions

In Brazil, the records are related to preserved areas, but unfortunately, those spaces still being affected by negatives influences. So, formal education to the population that lives near those areas and the park managers can start to change the situation.

Resource & habitat protectionHabitat & natural process restorationFormal education

Research needed

Actions that are orientated to taxonomy and exploration to new sites need to be stimulated until a better understanding of this species status.

TaxonomyPopulation size, distribution & trends

Use and Trade



Country occurrence

Regional Population and Trends

Country Trend Redlisted